The Senior Deacon of a Masonic Blue Lodge is an assistant officer of the Lodge. The Senior Deacon's principle roles are to welcome and escort both visitors and candidates into the lodge and introduce distinguished visitors. It is his duty to assist the Worshipful Master and carry orders between the Worshipful Master and the Senior Warden. During degree rituals, he guides the new candidate and conducts him around the lodge room.
During the opening and closing ceremonies, the Senior Deacon opens the Bible to the correct passage of the degree being worked and closes it after the lodge is adjourned. He also lights and extinguishes the candles at the altar. In some lodges, he carries the ballot box around the lodge when new members are being voted upon. The Senior Deacon's position is similar to a Manager. The Senior Deacon (and the Junior Deacon) both carry long staffs (or rods), because as messengers of the Worshipful Master, the staffs are symbolic of the caduceus (or wand) that the Roman winged god and messenger Mercury carried during his duties. Atop the rods are the jewels of their offices.